Automatic air valve



F b. 2 1926. v F. J. FRUNZ ET AL AUTOMATIC AIR "VALVE Filed Jul 22, 1924snow Wow Patented F eh. 2, 1926.

Ultll' l t lllt ru mwm m 'l FRANK FEUJZ iulilD JOHN FRETHZ, F PATTERSON,CALIFORNIA.

nuroluerro Application filed July 252,

To aZZ uviom vimg concern.

Be it known that w rim; J. Forms and Jot-is it. iuizens of the Unitecon, in the county lulifornia, have usetul nunts in the followi .ihis1211* on automatic air valv with intern-Lil C0i'l1l)'=" ot the type usedby u, tomoi It is our ob ect to provid a valve which a cording to the isautomatically conti oll speed of travel of the to. 0, so that ween thevehicle is running slowly, a. tively small amount or whereas when the svalve will be opened admit more air.

Que feature of the invention is the rovision of the structure for thisend which is such to pe.. to installed to cooperate with e. stool: portswithout requiri I OXtCIlSIs'G alicratic i of the latter.

liiiore s iecifically speaking, we propose to operate the device fromsome driven part of the vehicle, for instance, from the speedometeroperating gear or one of the front wheels and to include in thestructure an automatically controlled governor, which acts directly onthe air valve, for opening and closing the same.

lthcr features and advantages will heconic apparent during the followingdescription :1 ud drawing in the accompanying drawing, forming a -partot this application, aid in which like i nume" are employeail todesignate litre parts throughout the same:

l igu 'e l is a central vertical section with. part t :1. deviceconstructed in AIR VALVE.

1924:. Seria1lNo.72' /,590.

like member 5, which has oppositely extending arms 6 connected toextensions 7, on the valve. The ring like part surrounds the slidingsleeve 8 of the governor, this sleeve being in turn slidable upon theshaft 9 has a stop collar 10 to limit the sliding movement of thesleeve, in one direction. The shaft 11 of the governor has a reducedportion forming a journal 12, and this journal carries a pinion 13, withwhich a gear 14: meshes for imparting rotation to the shaft 11. Thegovernor is enclosed within the casing 15, which is formulated at. itstop to provide 'a hearing for the journal 12. The casing can rics abracket 16, which in turn carries a hearing 17, for the flexible drivingshaft 18. The casing 15 is shaped to permit free action of the weightedarm of the governor and it has bottom shaped to provide attaching flan19, by means of which it is connected to the intake 1. Furthermore, theaforesaid valve 3 is provided with a central pocket 20, for reception ofthe lower end of the shaft 9.

From the foregoing description, it is obvious that when the shaft 18 isset in rotation, the gearing will rotate the governor. As is usual, thecentrifugal force will slide the sleeve 8 up on the shaft 9, as thespeed of rotation increases, and the valve 3 will he lifted throiiighthe medium of the connec tions 5 and 6. Thus, the greater the speed ofthe vehicle the greater the amount of air supplied to the engine, andvice versa. By properly proportioning the supply of air with respect tothe speed of travel of the vehicle, smooth running is insured, and amore effectively operating engine is assured. Normally, the slidingvalve is slightly open, as not to interfere with the starting of anengine with which it is used.

A careful consideration of the description in connection with thedrawing will enable persons skilled in the art to which the inventionrelates to obtain a clear understanding of the same. Therefore, a morelengthy doscription is deemed unnecessary.

Although we have shown and described the preferred embodiment of ourinvention, it is to be understood that minor changes coming within thescope of the adjoined claim may be resorted to, if desired.

We claim:

A device of the class described comprising an intake pipe, a valvearranged transversely in said pipe and adapted for vertical slidingmovement, a casing mounted upon said pipe,

said casing being provided with a bearing, a centrifugal governorarranged in said casing, the shaft of said governor being journaled forrotation in said bearing, a pinion carried by said shaft, said valvebeing provided with a central pocket open at its top, the loWer end ofsaid shaft telescoping into said pocket and being provided With spacedshoulders, said governor including a sleeve slidable upon the shaftbetween said shoulders, and a yoke having its arms connected to saidvalve and provided With a central ring through which said governorsleeve passes.

In testimony whereof we afiix our signatures.

FRANK J. FRUNZ. JOHN W. FRUNZ.

